1. Department of Psychiatry, Jeonbuk National University Medical School, Jeonju, Korea
2. Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
3. Department of Psychological Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
4. Biostatistics, Janssen-Cilag, Breda, The Netherlands
5. Regional Medical Affairs, Janssen Pharmaceutical Companies of Johnson and Johnson, Singapore, Singapore